CN100430436C - Reinforced sheet composition for vehicle metal plate - Google Patents
Reinforced sheet composition for vehicle metal plate Download PDFInfo
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- CN100430436C CN100430436C CNB2004100423337A CN200410042333A CN100430436C CN 100430436 C CN100430436 C CN 100430436C CN B2004100423337 A CNB2004100423337 A CN B2004100423337A CN 200410042333 A CN200410042333 A CN 200410042333A CN 100430436 C CN100430436 C CN 100430436C
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Abstract
The present invention provides a reinforced sheet composition for vehicle metal plates and reinforced sheets obtained by forming the reinforced sheet composition. The composition contains the combination of a reinforcing agent and a binding agent using epoxy resin modified by butadiene rubber and epoxy resin modified by bisphenol A epoxy resin and/or end carboxyl group butadiene, PVC resin or pure PVC resin for paste, a mixture composed of viscosity increaser, a blowing promotor, a latent curing agent and bituminous resin, and a filling agent, a heat stabilizer, a colorant, a reinforcing agent, a foamer and a hygroscopic agent mixed in the mixture. The reinforced sheets of the present invention have excellent effects of vibration reduction and reinforcement even when the reinforced sheets are stuck on bent metal plates of vehicles or are stuck with thinner thickness.
Description
Technical field
For example the present invention relates to metal sheet such as automobile (vehicle) metal sheet with strengthening sheet composition, more particularly, the present invention relates to be used for the used enhancing vibration damping sheet materials of metal sheet such as car door, roof, car bonnet, tailstock luggage and side plate of vehicle.
Background technology
Usually, the routine that is used for the vibration damping sound absorption of metal sheet such as vehicle metal sheet strengthens sheet composition and comprises isoprene-isobutylene rubber or liquid-state epoxy resin series.
But, relatively poor by the sheet material reinforced effects that described composition molding obtains, and when the enhancing sheet-adhesion that obtains by described composition molding on automotive body sheet during through longer for some time, this enhancing sheet material usually all can oxidation, thereby causes the vibration suppression function and the sound absorption function of this sheet material to die down gradually.And, can be when hardening by the enhancing sheet material that the moulding of liquid-state epoxy resin series obtains by contractile response along with vehicle sheet material shrinks together, perhaps this sheet material can come off when transportation, they are on being coated to metal sheet the time, be difficult to adhere to onboard with certain thickness and width, because this sheet material hardness is lower, so can only adhere to onboard with thicker thickness, the weight that so just causes having adhered to the vehicle of these sheet materials rises greatly.Therefore, the quality of vehicle will descend, and its production cost also can rise simultaneously.
Summary of the invention
The invention provides a kind of vehicle metal sheet with strengthening sheet composition, this sheet composition can stick on the metal sheets such as car door, roof, car bonnet, tailstock luggage and side plate of vehicle, described composition has overcome the routine that comprises isoprene-isobutylene rubber or liquid-state epoxy resin series and has strengthened the above-mentioned defective of sheet material with composition, therefore, also can show fabulous effectiveness in vibration suppression and reinforced effects even the enhancing sheet material that is obtained by described new and improved composition molding sticks on the crooked metal sheet of automobile or with thin thickness and adheres to.
Therefore, can obtain following effect: the operation that adheres to described sheet material is very easy; Vehicle weight can not rise significantly yet; The quality of automobile is improved; And the production cost of automobile has obtained reduction.
Description of drawings
What Fig. 1 represented is vehicle metal sheet of the present invention strengthens sheet material with foam cross-sectional view.
Embodiment
Vehicle metal sheet of the present invention is characterised in that with strengthening sheet composition, at first following material is mixed: based on the gross weight of described composition, any one or two kinds of materials in the Resins, epoxy of the Resins, epoxy that is selected from paracril (NBR) modification of 12～25 weight %, bisphenol A type epoxy resin and end carboxyl butyronitrile multipolymer (CTBN) modification, they are simultaneously as tackiness agent and toughener; Being selected from of 10～25 weight % stuck with paste any or the total material with polyvinyl chloride (PVC) resin or pure polyvinyl chloride resin; The tackifier of 16～22 weight %, described tackifier are that the conventional adhesive copolymer resin by will comprising vinyl acetate resin and vinyl chloride monomer obtains with the ratio mixed melting of any plasticiser mixture that is selected from following plasticiser mixture with 1: 2, described plasticiser mixture be dioctyl phthalate (DOP) (DOP) with 1: 1 mixture of 1: 1 mixture, DOP and the epoxidised soybean oil of Octyl adipate (DOA) or diisononyl phthalate (DINP) and DOP or DOA in one of 1: 1 mixture; Any one or two kinds of materials in ZnO, Zn-St mixture, Pb-St mixture, Ca-St mixture and the urea resin of being selected from as 0.3～1 weight % of blowing promotor; Dyhard RU 100 as 3～6 weight % of latent curing agent; And, then, be usually used in moulding the material of product molding and mixing below in the mixture of gained, adding respectively successively: as the lime carbonate of 27～40 weight % of weighting agent as the bituminous resins of 2～6 weight % of anticorrosive agent; Calcium oxide as 2～4 weight % of moisture adsorbent; Carbon black as 1～5 weight % of tinting material (staining agent), toughener and conductive agent; K-Zn mixture as 1～5 weight % of thermo-stabilizer; Be selected from Cellmic C 121, N, N '-dinitrosopentamethylene tetramine, 4, any one or two kinds of materials of two benzol sulfohydrazides of 4 '-oxygen base and p-toluene sulfonyl hydrazide as 1～3 weight % of whipping agent.
For composition of the present invention being fitted on the metal sheet of car body; at kneading machine or homomixer (Level Mixer) thus in will form composition of the present invention composition mix and obtain mixture; mixture with gained sticks on any back up pad that is selected from as tinsels such as aluminium flake or stainless steel substrates or glass wool etc. then; thereby form certain thickness sheet material; the another side that adopts interleaving paper will stick to the described sheet material on this back up pad protects; thereby finally obtain a kind of enhancing sheet material; during use described interleaving paper is removed, this sheet material can be adhesive on the vehicle metal sheet.
Below the reason that among the present invention the addition of every kind of composition is limited in the above-mentioned scope is made an explanation:
Addition at the Resins, epoxy of the Resins, epoxy of described NBR modification or bisphenol A type epoxy resin or CTBN modification is less than under the situation of 12 weight %, the plasticity-of the sheet material that obtains by its moulding, elasticity, shock resistance and might descend to the adhesive power of metal sheet, therefore these sheet materials can come off from described metal sheet easily, and under the situation of consumption more than 25 weight % of these resins, although the sheet material excellent elasticity of gained but toughness descend, they also can come off or break.
When the addition of PVC is lower than 10 weight %, working (machining) efficiency, stereomutation rate (modifiedrate of volume) and toughness all might descend, and when described addition surpasses 25 weight %, although toughness and working (machining) efficiency are all very outstanding, but the stereomutation rate might rise, and flexible can decline.
When the consumption of described tackifier is lower than 16 weight %, working (machining) efficiency might descend, and when described consumption surpassed 22 weight %, working (machining) efficiency might descend, and because initial tackiness descends, so this sheet material might stick on the described sheet material fully.
Described copolymer resin in the described tackifier and plasticiser mixture should mix with 1: 2 ratio, and each softening agent in the described plasticiser mixture should mix with 1: 1 ratio, and its reason is as follows:
Less than or situation greater than described scope under, can cause the tackiness of final sheet material to descend or viscosity too strong, so described sheet material will be difficult to stick on the described metal sheet.
Among the present invention, adding described blowing promotor is in order to reduce the decomposition temperature of described whipping agent, when the consumption of described blowing promotor is less than 0.3 weight %, because the decomposition temperature of described whipping agent does not descend, so can not foam to this sheet material, and when described consumption surpasses 1.0 weight %, under the effect of residual blowing promotor, frothing percentage will descend, and the foaming shape also can be restricted.
Consumption at described latent curing agent is less than under the situation of 3 weight %, the curing speed of this sheet material is slow or can not solidify, therefore, hardness and adhesion strength will descend, and when its consumption during greater than 6 weight %, the adhesive surface of resulting sheet will break away from, and this sheet material will descend with the perviousness of composition when storing.
Addition at described bituminous resins is less than under the situation of 2 weight %, and corrosion-resisting function will die down, and when this addition during more than 6 weight %, described sheet material can descend with the perviousness of composition.
Be less than under 27 weight % or the situation more than 40 weight % at the addition as the lime carbonate of described weighting agent, volume retentivity, working (machining) efficiency and the tackiness of the finished product (sheet material) will descend.
Be less than under the situation of 2 weight % at addition as the calcium oxide of described moisture adsorbent, to be difficult to remove effectively contained moisture in the enhancing sheet material, and under the situation of this addition more than 4 weight %, when the enhancing sheet-adhesion that will be obtained by its moulding was on metal sheet, this sheet material was easy to break.
Be less than under 1 weight % or the situation at sooty addition, enhancing power and electroconductibility descended or excessively increase more than 5 weight % as tinting material, toughener and conductive agent.
Be less than under the situation of 1 weight % at the addition as the described K-Zn mixture of thermo-stabilizer, thermostability will descend, and when described addition during more than 5 weight %, adhesive power and stability will die down.
Addition at described whipping agent is less than under the situation of 1.0 weight %, and described frothing percentage will descend, and when described addition during more than 3 weight %, the intensity of described sheet material, vibration-damping function and enhancing power will descend.
Below be the effect of enhancing sheet material of the present invention with each composition in the composition.
The interpolation of the Resins, epoxy of the Resins, epoxy of described NBR modification, bisphenol A type epoxy resin and CTBN modification is for adhesive power, bonding strength and the shock resistance on oiliness surface are provided as the enhancing sheet material of the finished product.
Described pure PVC or the interpolation of sticking with paste with PVC are to provide fabulous extrudability, flexibility, hardness and adhesive power for the enhancing sheet material as the finished product.
The interpolation that is mixed with the described tackifier of the copolymer resin of vinyl-acetic ester and vinyl chloride monomer and plastic binder (plasticiser mixture) is to provide tackiness in order to improve as the working (machining) efficiency of the sheet material of the finished product and for it, described blowing promotor is to be used to reduce the decomposition temperature of described whipping agent so that it is in for example about 170 ℃ of foaming of low temperature (blowing temperature is usually greater than 200 ℃), described Dyhard RU 100 as latent curing agent is to be used to prevent the finished product (enhancing sheet material) infiltrative quick decline when at room temperature storing, described bituminous resins is used to the finished product and excellent tight adhesion power is provided and is used to metal sheet that non-corrosibility is provided, described lime carbonate as weighting agent is the volume that is used to control the finished product (sheet material), described moisture adsorbent is to be used for dehumidifying, wherein, as the calcium oxide of described moisture adsorbent can with the reaction of moisture in the finished product, thereby be present in the finished product as exsiccant calcium hydroxide, described carbon black has played tinting material, the effect of toughener and conductive agent, described K-Zn mixture as thermo-stabilizer is to be used to provide thermostability, and played the effect that promotes the promotor that whipping agent decomposes, after with coating car body being applied on the car body production line, by the heat of solidification treatment, described whipping agent can be used for making Resins, epoxy and resin PVC foaming.
Embodiment
Shown in the embodiment of following table 1, the composition that to form composition of the present invention in described kneading machine or homomixer mixes by stirring, thereby obtain being used to make the mixture of described enhancing sheet material, by using the mixture of gained, extrude and obtain automobile-used enhancing sheet material, performance to these formed sheets detects then, thereby obtains the result shown in the following table 2.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Bisphenol A type epoxy resin | 12 | - | - | - |
| The Resins, epoxy of CTBN modification | 7 | 9 | - | 17 |
| The Resins, epoxy of NBR modification | - | 8 | 19 | - |
| Paste polyvinyl chloride resin | 22 | - | 15 | - |
| Pure polyvinyl chloride resin | - | 16 | - | 12 |
| Tackifier | 20 | 16 | 22 | 18 |
| Weighting agent | 27 | 40 | 30 | 35 |
| Moisture adsorbent | 2 | 3 | 1.5 | 4 |
| Carbon black | 2 | 1.3 | 3 | 5 |
| Latent curing agent | 3 | 5 | 4 | 6 |
| Thermo-stabilizer | 1 | 1.7 | 2.5 | 3 |
| Bituminous resins | - | - | 3 | - |
| Whipping agent | 3 | - | - | |
| Blowing promotor | 1 | - | - | - |
| 100 | 100 | 100 | 100 |
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Outward appearance | Normally | Normally | Normally | Normally |
| Proportion | 1.52 | 1.48 | 1.53 | 1.45 |
| Solid | 98.5 | 99.6 | 99.8 | 99.3 |
| Perviousness | 75 | 70 | 65 | 60 |
| Initial tackiness (kg/cm 3) | 0.5 | 0.6 | 0.5 | 0.6 |
| Adhesion strength (kg/cm 3) | 55 | 45 | 42 | 25 |
| Bending strength (kgf.max.sus) | 40 | 47 | 37 | 25 |
| Bending strength (kgf.max.G/W) | 30 | 28 | 26 | 20 |
| Frothing percentage (%) | 150 | - | - | - |
| Shock resistance (number of times) | Normally | Normally | Normally | Normally |
Test according to KSM2095 and KSM3710
Industrial applicibility
According to the present invention, the described enhancing sheet material that is used for the sheet material of automobile (vehicle) can be with the form of thin layer as sheet materials such as the car bonnet that strengthens sheet material and be adhesive in automobile, car door, roof, base plate, back side panels, then in drying oven by making the coating surface heated drying (curing) of automobile, thereby make this sheet material automatically and simultaneously adhere to, foam and solidify (drying), and heating that need not be independent, curing operation and equipment. Curing by gained strengthens lamella, can obtain the function of fabulous enhancing power effect and minimizing automobile vibration, and because this enhancing sheet material is spumescence, so vehicle weight can significantly not rise.
Therefore, the production cost of automobile and fuel consumption can obtain cutting down. More particularly, because this sheet material has all kinds, so they optionally stick on the parts of any needs in the automobile, such as flat components or bending part.
In addition,, can greatly improve the defective of existing liquid-type toughener by means of enhancing sheet material of the present invention, for example, inhomogeneous by the coating thickness that flowability causes, be easy to shrink, be easy to corrode and too weak etc. to the enhancing power of sheet material.
In addition, because enhancing sheet material of the present invention can make with the thickness of 1～1.5mm, this thickness is thinner than the thickness of existing enhancement layer 1.5～3.0mm, therefore adopts the weight of the automobile of this sheet material can be very light, and its manufacturing cost has also obtained reduction.
In addition, the sheet material that is made by composition molding of the present invention has greater than 15kg/cm
2Fabulous adhesion strength, and they have the fabulous bending strength greater than 15kgf.
Claims (1)
1. a vehicle metal sheet is with strengthening sheet composition, it is characterized in that, at first following material is mixed: based on the gross weight of described composition, 12～25 weight % are selected from any one or two kinds of materials in the copolymer-modified Resins, epoxy of acrylonitrile butadiene rubber modified Resins, epoxy, bisphenol A type epoxy resin and end carboxyl butyronitrile, and their are simultaneously as tackiness agent and toughener; 10～25 weight % are selected from any or the total material of paste with polyvinyl chloride (PVC) RESINS or pure polyvinyl chloride (PVC) RESINS; The tackifier of 16～22 weight %, described tackifier are that the conventional adhesive copolymer resin by will comprising vinyl acetate resin and vinyl chloride monomer obtains with the ratio mixed melting of any plasticiser mixture that is selected from following plasticiser mixture with 1: 2, and described plasticiser mixture is 1: 1 mixture one of in 1: 1 mixture of 1: 1 mixture, dioctyl phthalate (DOP) and epoxidised soybean oil of dioctyl phthalate (DOP) and Octyl adipate or diisononyl phthalate and dioctyl phthalate (DOP) or the Octyl adipate; Any one or two kinds of materials in ZnO, Zn-St mixture, Pb-St mixture, Ca-St mixture and the urea resin of being selected from as 0.3～1 weight % of blowing promotor; Dyhard RU 100 as 3～6 weight % of latent curing agent; And, be usually used in moulding the material of product molding and mixing below in the mixture of gained, adding respectively successively then: as the lime carbonate of 27～40 weight % of weighting agent as the bituminous resins of 2～6 weight % of anticorrosive agent; Calcium oxide as 2～4 weight % of moisture adsorbent; Carbon black as 1～5 weight % of tinting material, toughener and conductive agent; K-Zn mixture as 1～5 weight % of thermo-stabilizer; Be selected from Cellmic C 121, N, N '-dinitrosopentamethylene tetramine, 4, any one or two kinds of materials of two benzol sulfohydrazides of 4 '-oxygen base and p-toluene sulfonyl hydrazide as 1～3 weight % of whipping agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100423337A CN100430436C (en) | 2004-05-20 | 2004-05-20 | Reinforced sheet composition for vehicle metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100423337A CN100430436C (en) | 2004-05-20 | 2004-05-20 | Reinforced sheet composition for vehicle metal plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699472A CN1699472A (en) | 2005-11-23 |
| CN100430436C true CN100430436C (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100423337A Expired - Fee Related CN100430436C (en) | 2004-05-20 | 2004-05-20 | Reinforced sheet composition for vehicle metal plate |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319085B (en) * | 2008-07-22 | 2010-06-16 | 上海材料研究所 | Light-high-strength epoxy foam material and preparation method thereof |
| JP2012056112A (en) * | 2010-09-06 | 2012-03-22 | Nitto Denko Corp | Reinforcing sheet and reinforcing method |
| CN102964649B (en) * | 2012-11-30 | 2014-11-05 | 保光(天津)汽车零部件有限公司 | Manufacturing method for car damping materials |
| CN104154236A (en) * | 2014-07-15 | 2014-11-19 | 宁国天运橡塑制品有限公司 | Oil seal for automobile rear axle assembly |
| BR102017016857B1 (en) * | 2016-08-08 | 2023-02-14 | Sika Technology Ag | FILLER COMPOSITION, FILLER AGENT, USE OF THE COMPOSITION, METHOD FOR FILLING AN CLOSED SPACE AND VEHICLE PART |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0518253A2 (en) * | 1991-06-11 | 1992-12-16 | Nippon Zeon Co., Ltd. | Panel reinforcing-sheet material and vehicle outer panel structure using the same |
| US6333102B1 (en) * | 1999-07-30 | 2001-12-25 | Hyundai Motor Company | Expandable reinforcing sheet material for vehicle outer panel |
| EP1299497A2 (en) * | 2000-06-06 | 2003-04-09 | The Dow Global Technologies Inc. | Epoxy based reinforcing patches with improved adhesion to oily metal surfaces |
-
2004
- 2004-05-20 CN CNB2004100423337A patent/CN100430436C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0518253A2 (en) * | 1991-06-11 | 1992-12-16 | Nippon Zeon Co., Ltd. | Panel reinforcing-sheet material and vehicle outer panel structure using the same |
| US6333102B1 (en) * | 1999-07-30 | 2001-12-25 | Hyundai Motor Company | Expandable reinforcing sheet material for vehicle outer panel |
| EP1299497A2 (en) * | 2000-06-06 | 2003-04-09 | The Dow Global Technologies Inc. | Epoxy based reinforcing patches with improved adhesion to oily metal surfaces |
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| Publication number | Publication date |
|---|---|
| CN1699472A (en) | 2005-11-23 |
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